function Execute()

Execute function is called when all parameters on the stack have been processed successfully.

After the Execute()  function the system will call ModelBuilder( lod ) ( if the function exists within the script )

Example:

/* Note:  We are running as a command so this object is a  BK_CommandScriptable

   SetRefFrame(pos,xDir,yDir); function is part of the BK_DataScriptable interface, the command will route

    to the underlining BK_DataScriptable object the function call

*/

function Execute()

{

       var pos = this.GetPoint( 0 );

 var vec = this.GetNormal( 0 );

 if( vec )

 {

 var eps = 1.0e-6;

 var yDir = new Vector3d( 0,0,1.0 ); // up vector

 var xDir = yDir.cross_product(vec);

 if(  xDir.length()< eps ) //normal and z vector are parallel

 {

         xDir = new Vector3d( 1.0,0,0 );

         yDir = new Vector3d( 0.0,1.0,0 );

 }else

 {

         xDir = xDir.unit_vector();

         yDir = vec.cross_product(xDir);    

 }

 this.SetRefFrame(pos,xDir,yDir);

 }else

       this.SetRefFrame(pos,new Vector3d(1,0,0),new Vector3d(0,1,0));

}